Steven A. Cohen Close to Deal at 510 Madison

Billionaire Steven A. Cohen is poised to follow his recent legal reprieve with a huge lease at 510 Madison Avenue.

After months of speculation, his mercurial hedge fund, SAC Capital, is near a deal to take 66,000 square feet, or the second through fifth floors, multiple sources said. Rumors of the deal have been swirling for months, but a lawsuit by Mr. Cohen’s ex-wife, which included allegations of insider trading, are said to have held up the signing. A judge threw out the case yesterday, and sources said the deal could now be signed in a matter of days.

SAC Capital is currently spread over multiple floors at nearby 540 Madison and is headquartered in Stamford, Conn.

More details to follow. For now, Boston Properties declined to comment and CB Richard Ellis‘ Paul Amrich, the broker for 510 Madison, did not return calls for comment. SAC Capital’s broker, Newmark Knight Frank‘s Neil Goldmacher did not respond to requests for comment.